Question: Who was Alexander Dovzhenko's spouse when their marriage ended on 25th November 1956?
Paraphrase: Alexander Dovzhenko's marriage to whom ended on November 25, 1956?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q55198 p:P26 ?s . ?s ps:P26 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'1956')) }